1forecast

: to say that (something) will happen in the future : to predict (something, such as weather) after looking at the information that is available

forecastalsofore·cast·edfore·cast·ing

Full Definition of FORECAST

transitive verb

1

a: to calculate or predict (some future event or condition) usually as a result of study and analysis of available pertinent data; especially: to predict (weather conditions) on the basis of correlated meteorological observations

Synonym Discussion of FORECAST

foretell, predict, forecast, prophesy, prognosticate mean to tell beforehand. foretell applies to the telling of the coming of a future event by any procedure or any source of information <seers foretold the calamity>. predict commonly implies inference from facts or accepted laws of nature <astronomers predicted an eclipse>. forecast adds the implication of anticipating eventualities and differs from predict in being usually concerned with probabilities rather than certainties <forecast snow>. prophesy connotes inspired or mystic knowledge of the future especially as the fulfilling of divine threats or promises <prophesying a new messiah>. prognosticate is used less often than the other words; it may suggest learned or skilled interpretation, but more often it is simply a colorful substitute for predict or prophesy<prognosticating the future>.